Originally Posted by 4racer
hi,
i take a caliper to measured, from top sleeve to piston in tdc,
then i take the bottom plate and measure how mitch he goes in the sleeve,
and then i make shimming for headclearence.
when i take a conrod play from max 3/100 and a maximum rear bearing play from 4/100 mm so i get a total headclearence from +/-0.35-0.4 mm.
if i go what you say i must it to a total from 0,6 mm, this is big.
dieter
You are over complicating things too much. For the head clearance if I did it your way I would come to a figure that is totally different again as i shave anything up to 4mm off the bottom of the sleeve itself. Simply remove the plug from the engine and put a piece of solder in so that when the piston comes up it nips it. Measure the nipped piece and then shim accordingly to get 0.6mm. (eg - if the piece of nipped solder is 0.5mm then add 1 0.1mm shim).